removed clippy refcell ignore

Author: Bengt Lofgren

solana/modules/matching-engine-testing/tests/integration_tests.rs

@@ -1,7 +1,6 @@
 #![allow(clippy::expect_used)]
 #![allow(dead_code)]
 #![allow(clippy::panic)]
-#![allow(clippy::await_holding_refcell_ref)]
 
 use anchor_lang::AccountDeserialize;
 use anchor_spl::token::TokenAccount;

solana/modules/matching-engine-testing/tests/utils/mod.rs

@@ -1,7 +1,6 @@
 #![allow(clippy::expect_used)]
 #![allow(dead_code)]
 #![allow(clippy::panic)]
-#![allow(clippy::await_holding_refcell_ref)]
 
 pub mod account_fixtures;
 pub mod airdrop;